micro chp 4, 10 and 25kwe
DESCRIPTION
Micro CHP suitable for external mounting.TRANSCRIPT
Mic
ro c
ogen
erat
ion
Affordable, efficient and innovative
ENER-G Combined Power Limited
ENER-G House
Daniel Adamson Road
Salford
Manchester
M50 1DT
Tel: +44 (0) 161 745 7450
Fax: +44 (0) 161 745 7457
E-mail: [email protected]
www.energ.co.uk
Loss
15%
Electricity
35%
Heat
50% Natural gas
100% CHPMicro
Organisations are increasingly looking for environmentally friendly systems to supply their building energy needs. By generating electrical power on-site, losses associated with electrical power transmission are reduced and the waste heat energy produced can be used for heating or cooling. This is micro cogeneration.
Micro cogeneration or combined heat and power (CHP) technology converts natural gas into both electricity and heat in a single process on site. The natural gas fuel is more beneficial to the environment than other fossil fuels, as the emissions, such as CO2, NOx and SOx are comparatively smaller.
Micro cogeneration systems offer a higher overall efficiency than typical conventional electrical power generation, achieving reduced energy consumption, reduced CO2 emissions, and reduced energy costs.
While the typical efficiency of central generation is around 35%, micro CHP technology is more than twice as efficient and can achieve efficiency up to 85% (as shown on the graph below).
A compact and efficient solution
A c
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ENER-G’s experience in the cogeneration market dates back to the 1980s when we began to design, manufacture, install and maintain cogeneration systems. From smaller systems to large, complex heating solutions, between 4kW and 10MW we deliver the best fit to all requirements.
The micro series are the most recent addition to our product portfolio, as a result of a technology partnership with Yanmar, a leading Japanese manufacturer. This allows us to offer this both environmentally and economically beneficial energy technology to small and micro applications, in the 4-25kW range.
The compact Japanese design can benefit the residential, health, retail, leisure, commercial, industrial and public sectors.
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Benefits
Micro cogeneration is highly energy efficient and as well as supplying a business with power and heat, it can deliver a number of positive financial and environmental benefits.
Applications
This low carbon technology is suitable for organisations with smaller buildings that need to use electricity and heat for long periods (see chart).
Applying micro cogeneration can result in:
Increased energy efficiency
Reduced CO2 emissions
Reduced energy costs
Peak energy demand reduction
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Benefits and applications
Ben
efits and
app
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Operational benefits Environmental benefits
High availability
Ease of use by automatic operation
Minimal service requirement with long service intervals (10,000 hours)
Acts as a backup supply for non-essential heat and power
Piece of mind with optional remote monitoring
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Reduced primary energy use
Reduced building carbon footprint (lower CO2 emissions)
Reduced transmission losses
Low noise design:
ENER-G 4Y: 53 dBA at 1m
ENER-G 10Y: 56 dBA at 1m
ENER-G 25Y: 64 dBA at 1m
Low NOx exhaust
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Financial benefits UK Legislative benefits
Reduced energy cost by up to 40%
Reduced life cycle cost by long service intervals
Can reduce the cost impact of the Carbon Reduction Commitment (CRC)
Good quality CHP can attract enhanced capital allowances for eligible organisations (ECA’s)
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Helps in meeting Carbon Reduction Commitment (CRC) targets, with the useful heat from micro CHP being zero rated
Helps to meet carbon footprint targets for new and redeveloped buildings under the Part L of the Building Regulations
Under the 2008 Energy Act micro CHP up to 50kWe qualifies for the Feed-in Tariff (FIT) system for renewable electricity technologies
More information www.decc.gov.uk
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Retail stores
Leisure centres
Health spas
Care homes
Hotels
Hospitals
Office buildings
Apartment blocks
Laundries
Fast food restaurants
Micro CHP
Contact us: E-mail: [email protected]
Tel: 0161 745 7450
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Gas engine
The heart of the unit is a Miller cycle, four stroke internal combustion engine. Engine features include lean burn combustion and power performance, generated by a special piston.
The system optimises ignition timing and matches the excess intake air. This increases the overall efficiency and reduces fuel consumption and NOx emissions. In addition, the engine maintenance interval is the longest for a cogeneration gas engine: 10,000 hours.
Generator
The ENER-G micro series have the lightest and most compact generators available built in. Compared to other generators these give a higher performance and realised a generating efficiency of 90%.
The micro CHP systems can be easily connected to the national grid by the application of the inverter. As an integral part of the system it coverts direct current to alternating current to allow the electricity generated to be fed back into the grid.
The application of the inverter reduces initial unit cost and makes it possible to achieve 100% utilisation of the units.
Th
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The technology
The system controller with constant monitoring of the unit operation achieves optimal balance between power demand and power output. The touch screen controller allows scheduled or manual operation and for the user to set up alarms.
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Th
e techn
olo
gy
ENER-G also offers remote monitoring for the micro CHP units. The system monitors and manages the unit and can be programmed to optimise its operation to suit the demand of the site. Linked to the ENER-G Head Office, the system daily uploads recorded operating data and in the event of a problem automatically takes corrective actions.
Compact and high-performance
Compared to existing generators, the ENER-G Micro series gives higher performance and has an operational efficiency of up to 85%. Yanmar, ENER-G’s technology partner, has succeeded in making one of the lightest and most compact micro CHP units available.
The design incorporates a fully packaged solution including built-in heat recovery, exhaust silencing and heat rejection for ease of installation.
The micro series have several important features:
Outstanding overall efficiency with a heat to power ratio of 2:1
Effective heat recovery system
Ease of installation and commissioning
Units are for external installation, which allows for easy planning process
Small footprint requires limited external space
CO2 savings achievable up to 30%
Potential multiple unit operation
Low NOx exhaust
Low noise design
Correct unit selection and operation
The technology offered provides efficient energy in the ratio of approximately 2:1 heat to electricity, with the potential for significant benefits for the user. For these benefits to be fully realised it is important the user carefully assesses the site’s heat and electrical demand profiles to optimise the unit size selection and operational regime. Thermal storage may be required to optimise the system.
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Contact us: E-mail: [email protected]
Tel: 0161 745 7450
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ENER-G 4Y ENER-G 10Y ENER-G 25Y
Output
Rated output¹ kW 3.87 10 25
Frequency Hz 50 50 50
Voltage V 230 400 400
Heat recovery kW 8.38 17.3 38.4
Electrical generation efficiency % 26.7 30.7 33.5
Exhaust heat recovery % 57.8 53.5 51.5
Total efficiency % 84.5 84.2 85
Exhaust heat recovery temperature °C 65 70 (max 78) 80 (max 85)
Transmission method - Inverter Inverter Inverter
Number of phase / wires -Single phase / two
wiresThree phases / four
wiresThree phases / four
wires
Power control Reverse power type - Standard Standard Standard
Multiple unit operation -3 units schedule
by group/schedule rotation by unit
3 units schedule by group/schedule
rotation by unit
3 units schedule by group/schedule
rotation by unit
Gas type - Natural gas Natural gas Natural gas
Maintenance interval Hours 10,000 10,000 10,000
Remote monitoring system - Option Option Option
Ambient temperature
-5 to +40 °C - Standard Standard Standard
ENER-G micro series
EN
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-G m
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¹ Power consumption by the unit is included
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ENER-G 4Y - Technical details
EN
ER
-G 4Y
- Techn
ical details
General description
Fuel type Natural gas
Electrical output 3.87kWe¹
Heat output 8.38kWh
Fuel input LHV 14.5 kWg²
Gas pressure 20mbar
Hot water flow rate 24.3 L/min³
Heating water temperature in / out
60°C / 65°C4
Min methane no of gas 80
Width 1,100mm
Depth 570mm
Height 1,555mm
Weight (operating) 410kg
Enclosure Standard External (IP44)
Engine
Type - reciprocating Yanmar CP4
Combustion cycle 4 stroke spark ignition
Cylinders 3 in line
Speed 2,000 rpm
Aspiration Natural
Acoustic enclosure 53 dBA @ 1m std.
Generator
Type HF Inverter
Frequency 50Hz single phase
Voltage / PF 230V / 0.97
Full load current 16 A
Efficiency 84.5%
Heat recovery system (integral to unit)
Fully closed single primary water circuit
Exhaust gas heat exchanger in primary circuit
PHE between primary and secondary circuits
Auto heat output modulation
Auto heat rejection through vent fan
Control and protection
On-board computer control, protection and monitoring
Engine stop/start, synchronising, modulation
Mechanical, electrical and thermal protection
Optional communication between unit and ENER-G Head Office
Optional equipment
Gas / fire detection systems
Heat and gas metering
Export control panel
Further information
(1) The heat recovery and efficiency values are those for rated output in standard atmospheric conditions.(2) The operating sound levels are maximum values measured in 4 directions at a point 1m from the side of the unit and 1.2m above the ground in an anechoic room simulation. The sound levels during actual operation are usually higher than the simulated values due to ambient noise and echoes.(3) The values for the external dimensions do not include piping, piping connections, or protruding parts.(4) The amount of fuel consumption is based on lower calorific values.(5) As for G83, the examination was carried out by New and Renewable Energy Centre (NaREC) in the UK.
1 Power consumption is included. 2 Tolerance +5% is not included.3 Max of +5%, 25.5 L/min.4 Max return water is 60°C.
Contact us: E-mail: [email protected]
Tel: 0161 745 7450
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ENER-G 10Y - Technical details
General description
Fuel type Natural gas
Electrical output 10kWe¹
Heat output 17.3kWh
Fuel input LHV 32.6 kWg²
Gas pressure 20mbar
Hot water flow rate 48.2 L/min³
Heating water temperature in / out
65°C / 70°C (max 78°C)4
Min methane no of gas 80
Width 1,470mm
Depth 900mm
Height 1,790mm
Weight (operating) 790kg
Enclosure standard External (IP44)
Engine
Type - reciprocating Yanmar CP10
Combustion cycle 4 stroke spark ignition
Cylinders 3 in line
Speed 1,700 rpm
Aspiration Natural
Acoustic enclosure 56 dBA @ 1m std.
Generator
Type HF Inverter
Frequency 50Hz three phase
Voltage / PF 400V / 0.97
Full load current 14 A
Efficiency 84 %
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-G 1
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Tec
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Further information
(1) The heat recovery and efficiency values are those for rated output in standard atmospheric conditions.(2) The operating sound levels are maximum values measured in 4 directions at a point 1m from the side of the unit and 1.2m above the ground in an anechoic room simulation. The sound levels during actual operation are usually higher than the simulated values due to ambient noise and echoes.(3) The values for the external dimensions do not include piping, piping connections, or protruding parts.(4) The amount of fuel consumption is based on lower calorific values.(5) As for G83, the examination was carried out by New and Renewable Energy Centre (NaREC) in the UK.
1 Power consumption is included. 2 Tolerance +5% is not included.3 Max of +5%, 50.6 L/min.4 Max return water is 65°C.
Heat recovery system (integral to unit)
Fully closed single primary water circuit
Exhaust gas heat exchanger in primary circuit
PHE between primary and secondary circuits
Auto heat output modulation
Auto heat rejection through vent fan
Control and protection
On-board computer control, protection and monitoring
Engine stop/start, synchronising, modulation
Mechanical, electrical and thermal protection
Optional communication between unit and ENER-G Head Office
Optional equipment
Gas / fire detection systems
Heat and gas metering
Export control panel
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ENER-G 25Y - Technical details
EN
ER
-G 25Y
- Techn
ical details
General description
Fuel type Natural gas
Electrical output 25kWe¹
Heat output 38.4kWh
Fuel input LHV 74.6kWg²
Gas pressure 25mbar
Hot water flow rate 110 L/min³
Heating water temperature in / out
80°C / 85°C4
Min methane no of gas 80
Width 2,150mm
Depth 900mm
Height 2,060mm
Weight (operating) 1,320kg
Enclosure standard External (IP44)
Engine
Type - reciprocating Yanmar CP25
Combustion cycle 4 stroke spark ignition
Cylinders 4 in line
Speed 1,900 rpm
Aspiration Natural
Acoustic enclosure 64 dBA @ 1m std.
Generator
Type HF Inverter
Frequency 50Hz three phase
Voltage / PF 400V / 0.97
Full load current 35.4 A
Efficiency 85%
Further information
(1) The heat recovery and efficiency values are those for rated output in standard atmospheric conditions.(2) The operating sound levels are maximum values measured in 4 directions at a point 1m from the side of the unit and 1.2m above the ground in an anechoic room simulation. The sound levels during actual operation are usually higher than the simulated values due to ambient noise and echoes.(3) The values for the external dimensions do not include piping, piping connections, or protruding parts.(4) The amount of fuel consumption is based on lower calorific values.(5) As for G59, the examination was carried out by New and Renewable Energy Centre (NaREC) in the UK.
1 Power consumption is included. 2 Tolerance +5% is not included.3 Max of +5%.4 Max return water temperature of 80°C.
Contact us: E-mail: [email protected]
Tel: 0161 745 7450
Heat recovery system (integral to unit)
Fully closed single primary water circuit
Exhaust gas heat exchanger in primary circuit
PHE between primary and secondary circuits
Auto heat output modulation
Auto heat rejection through vent fan
Control and protection
On-board computer control, protection and monitoring
Engine stop/start, synchronising, modulation
Mechanical, electrical and thermal protection
Optional communication between unit and ENER-G Head Office
Optional equipment
Gas / fire detection systems
Heat and gas metering
Export control panel
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Operation and maintenance
Op
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ion
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ain
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ance
Long-term care
ENER-G has 25 years of experience in operating and maintaining cogeneration systems around Europe. Our Service department coordinates our engineering teams 7 days a week throughout the year.
Our range of service packages available for the micro CHP systems are detailed in the below table.
Service packages can also be offered independently of ENER-G installations, as our service technicians are fully trained in all aspects of engine maintenance, including complete engine overhauls.
The micro CHP technology is designed to accommodate long service intervals reducing equipment downtime and increasing client savings.
Service packages
Name Included Contract period
PremierAnnual inspection and servicing
including engine overhauls
All repairs chargeable
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Nominal service interval - 10,000 hours1
Premier +Annual inspection and servicing
including engine overhauls
All repairs included
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Nominal service interval - 10,000 hours1
Monitoring and reporting
Remote monitoring and reporting
Providing alarms to service provider and customer
Monthly reports
Optional extras to all above contract types
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¹ Nominal service intervals are based on operating at standard operating conditions. Non standard operating conditions may require differing service intervals.
Contact us: E-mail: [email protected] Tel: 0161 745 7450
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Case study
Case stu
dy
Tyneside Cyrenians Charity, Newcastle upon Tyne
Tyneside Cyrenians, a North East based charity, which provides support and shelter for homeless people, has long recognised the importance of efficiently managing resources, particularly energy – to improve its cost and environmental performance.
The charity is aiming to establish best practice in the field of energy efficiency, therefore selected ENER-G’s pioneering micro CHP technology to achieve significant energy and carbon savings at its Newcastle-based premises.
The charity has installed an ENER-G 10Y micro CHP technology – providing 10kWe power to generate an energy efficient supply of electricity and hot water.
Suitable for external installation, the unit met all planning requirements and was installed in a conservation area adjacent to a listed building.
The micro CHP unit has proven ultra low noise levels, therefore could be positioned less than two meters from the bedroom accommodation.The ENER-G system is designed to integrate with the existing boiler plant to reduce its load. The heat captured from the micro CHP unit is used to generate domestic hot water and meet base heating loads of approximately 17kW.
The unit is connected into the site’s electrical distribution, becoming the primary source of power by meeting the base load power demand, whilst also generating up to 15,000kWh electricity every year for export to the national grid. This generates significant income for the charity.
The modern, practically designed unit uses natural gas to generate power locally, hence displacing the need for carbon intensive grid based electricity.
Its efficiency is around 84%, which is some 50% higher than grid electricity, and guarantees 10,000 running hours between servicing. The financial savings are predicted to be around £10,000 per year, without considering the offset of potential penalties, such as from the new Carbon Reduction Commitment (CRC).
Subject to government approval, from April 2010, additional income will be generated under the government’s Renewable Energy Strategy, whereby gas fired micro CHP technology will receive a Feed in Tariff (FiT) for all electricity generated, even if it is all used in-house.
The design, installation and project management was completed was completed by UK Biomass Ltd of Newcastle in May 2009.
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ENER-G Combined Power Limited
ENER-G House
Daniel Adamson Road
Salford
Manchester
M50 1DT
Tel: +44 (0) 161 745 7450
Fax: +44 (0) 161 745 7457
E-mail: [email protected]
www.energ.co.uk
About ENER-G
ENER-G provides customers with a variety of technologies ranging from the generation of energy to the management of energy use, delivering sustainable energy solutions and technologies on a business-to-business basis worldwide.
Established in Salford, Greater Manchester in the 1980s, the company offers a ‘one-stop-shop’ for all commercial and industrial energy requirements, from the efficient generation of energy to the equally efficient control of consumption. The company has partners across the globe.
Our solutions include combined heat and power (CHP), biogas utilisation, heat pump technologies, efficient lighting, controls, metering and data solutions and energy from waste. This is accompanied by our wide range of energy and water consultancy and procurement services.
ENER-G is 100% dedicated to the development of its products and markets, and over the years has seen rapid growth, both organically and through acquisition to achieve a strong global presence within the energy industry. Currently ENER-G operates in the UK, the Netherlands, Norway, Poland, Hungary, Lithuania, Spain, Italy, Romania, Mexico and South Africa.
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